JP2010051270A - Electric fence - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electric fence capable of preventing invasion of small animals as much as possible without causing electric leakage even when bottom weeds entwine. <P>SOLUTION: In order to solve the problems, the electric fence includes the followings. Claim 1: one or a plurality of wiry materials connected to a negative pole of a power source apparatus are installed from the side close to the grounding surface; and one or a plurality of wiry materials connected to the side of a positive pole of the power source apparatus are installed in the upper part of the wiry materials connected to the negative pole in the electric fence provided with the wiry materials having the surface with electroconductivity; supports installing the wiry materials insulatedly from the grounding surface; and the power source apparatus for applying a voltage for electric shocks to the wiry materials. Claim 2: one or a plurality of wiry materials in claim 1, wherein the height of the wiry materials at the lowest end from the grounding surface is set at &le;10 cm in the electric fence. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

  The present invention relates to an electric fence used for preventing harmful animals from entering farmland, orchards, and the like.

  In farmland or orchards, wild fences, deer, and other small animals (hereinafter referred to as pests) may be used to prevent electric crops from being eaten. Here, the electric fence is supported by an insulator attached to the support column, and each pulsed high voltage is applied to the bare wire connected to the plus or minus electrode, or the plus pole is connected to the bare wire. However, the negative pole is connected to the ground (earth), and when the animal touches the bare wire, it feels pain due to electric shock and dissipates to prevent the animal from entering. That is, when a part of the body of a pest that easily conducts electricity touches both the plus line and the ground (or minus line) at the same time, an electric shock occurs, and thereafter, a psychological effect that avoids fear is utilized.

Patent documents describing such electric fences include, for example, Japanese Patent Laid-Open Nos. 6-225680 and 2004-129600.
JP-A-6-225680 JP 2004-129600 A

  The electric fence configured as described above has the following disadvantages.

    1. When undergrowth grows and gets entangled with bare wires, electric leakage occurs and the voltage drops. If such a situation occurs, even if a pest touches a bare wire, the electric shock becomes weak and the intrusion cannot be prevented.

    2. Therefore, it is necessary to cut grass frequently to prevent undergrowth from growing. Since electric fences are usually installed over long distances, such work tends to be labor intensive.

    3. Furthermore, even a bare electric wire stretched at the bottom needs a certain height from the ground where the undergrowth does not easily get tangled, and cannot prevent the entry of small animals such as raccoon dogs and nutria.

    4. In addition, in the type of electric fence in which the negative pole is connected to the ground (earth), it is necessary to install the electric fence on the conductive soil. Otherwise, no current will flow through the body of the pest and no electric shock can be given. For this reason, when a part of the electric fence passes on a non-conductive ground such as a gutter, concrete, a paved road, or a rock, it is necessary to deposit soil on the non-conductive ground. Also, when a grass protection sheet is laid to suppress the growth of undergrowth, it becomes difficult for current to flow through the body of the harmful animal, and the electric shock received is reduced.

    5. When connecting the negative pole of the power supply device that supplies electricity to the electric fence and the ground (earth), a ground terminal is embedded near the power supply device. However, when the grounding location is rubble or dry land, the grounding resistance (grounding resistance) increases, so that the current that flows through the body of the harmful animal is difficult to return to the power supply device, and the electric shock received is reduced. .

  In order to solve the above problems, the electric fence according to the present invention is configured as follows.

  [Claim 1] An electric fence comprising: a wire having a conductive surface; a support for insulating the wire from a grounding surface; and a power supply device for applying an electric shock voltage to the wire. One or more wires connected to the negative pole of the device are provided from the side close to the ground plane, and one or more wires connected to the positive pole side of the power supply device are provided above the wire connected to the negative pole. Provide a book.

  Claim 2: In the electric fence according to claim 1, the height of the lowermost wire rod from the grounding surface is set to 10 cm or less.

  Hereinafter, it will be described in detail how the present invention configured as described above solves the problems.

  In the electric fence according to the present invention, the wire close to the ground plane is connected to the negative pole of the power supply device. Then, even if the undergrowth is stretched and entangled with the wire connected to the negative electrode, no leakage occurs and the voltage does not decrease. On the contrary, the undergrowth will play the role of earth, and it will be possible to more effectively give an electric shock to the harmful pests to invade. As described above, according to the electric fence according to the present invention, even if the undergrowth is entangled, the leakage does not occur unless the wire reaches the positive pole side. In other words, the trouble of mowing the grass is saved.

In addition, since no leakage occurs even if the undergrowth gets tangled, the height from the grounding surface of the wire provided at the lowest level as in the invention of claim 2 is set to 10 cm or less, that is, a shape along the ground. It is also possible to do. Since a wire rod can be erected even at the bottom of the ground in this way, even a small animal cannot enter the fence from the gap between the lowermost wire rod and the ground.
Since the small animal has a habit of climbing the wire when the tip of the nose hits the wire, the small animal trying to invade climbs the upper part along the wire. Then, when the body touches the wire connected to the positive electrode side and the wire connected to the negative electrode side at the same time, it receives an electric shock. That is, according to the present invention, it is possible to efficiently prevent small animals from entering.

  In addition, the electric fence according to the present invention is such that the wire connected to the plus electrode and the wire connected to the minus electrode are stretched between the support columns, and if the body of the pest touches both wires at the same time, I'm shocked. In other words, it is not always necessary for current to flow through the ground to the body of the pest. Therefore, according to the present invention, even when the electric fence is grounded on the non-conductive ground such as a gutter or concrete, it is not necessary to fill the earth.

In the present invention, since the wire connected to the negative electrode is installed on the side close to the ground plane, as shown in FIG. 1 to FIG. Can be provided. Since there are many grounds paved with asphalt or concrete at the place where electric fences are installed, it is very easy to install grounding at any point as in the present invention. It is.
Thus, according to the present invention, it is possible to ground at an arbitrary place where the ground resistance is small, and it is possible to effectively give an electric shock to a pest.

  Hereinafter, preferred embodiments of an electric fence according to the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a schematic explanatory diagram of an electric fence according to the present invention suitable for preventing the invasion of small animals, and FIG. 2 is a schematic explanatory diagram of an electric fence according to the present invention suitable for preventing the invasion of wild boar or the like. FIG. 3 is a schematic explanatory view of an electric fence according to the present invention suitable for preventing intrusion of deer and the like.

  In the figure, 1 is a power supply device for generating an impact current pulse, 2 is a support, 3a and 3b are wires, and 4 is a grounding rod.

  The power supply device 1 can use any of an AC power supply, a capacitor, a dry battery, a solar battery, and the like as its power source. A positive electrode (output terminal) 1a, a negative electrode (ground terminal) 1b, and other power switches, A power lamp is provided. Then, an impact voltage is intermittently applied to the positive electrode 1a.

  The output line 5 extended from the positive electrode 1a is connected to the wire 3a, and the ground wire 6 extended from the negative line 1b is connected to the ground bar 4 buried in the ground. The ground wire 6 is branched in the middle and connected to the wire 3b.

  It is preferable that the column 2 has a pointed shape so that the lower end thereof can be inserted into the ground, has strength, and has a certain degree of insulation. For example, a high functional plastic or glass fiber can be used. Alternatively, it is also possible to use a hollow material made of iron with an electrically insulating coating.

  The wire rods 3a and 3b are supported on the support column 2 via the insulator 7 with an interval in the vertical direction. The wires 3a and 3b are made of a conductive bare wire, a poly composite wire in which a plurality of conductive metal wires and a chemical fiber such as polyester are brought together, and a conductive special plastic covering the periphery of the conductive metal wire. Things can be used.

  FIG. 1 shows an electric fence that is optimal for preventing the entry of small animals. Wire rods 3a and 3b are installed between the columns 2 arranged at intervals of about 3 meters. Six wires 3b are installed at a distance of approximately 5 cm from the same height as the ground G, a wire 3a is installed at a distance of 5 cm on the top, and two wires 3a are installed at an interval of 10 cm from the wire 3a. It is. Although the lowermost wire rod 3b is not shown, it is fixed to the ground using a peg. The wire rods 3b and the wire rods 3a are connected by a connecting wire 8 having conductivity. Thereby, each wire 3a .. is connected to the plus pole 1a, and each wire 3b .. is connected to the minus pole 1b. Moreover, all the wire 3a and the wire 3b are connected with the vertical line 9 which has insulation in several places. This is to maintain the distance between the wires.

Further, a ground wire 6 is taken at an arbitrary position on the wire 3b and connected to a ground bar 4 buried in the ground. FIG. 2 shows an optimal electric fence for preventing the invasion of wild boar. The difference from the electric fence shown in FIG. 1 is how to construct the wires 3a and 3b. That is, the wire 3b is installed at a distance of 10 cm from the ground G, the wire 3a is installed at a distance of 10 cm from the wire 3b, and the wire 3a is installed at a distance of 20 cm from the wire 3a. . Other installation methods are almost the same as those of the electric fence shown in FIG.

  FIG. 3 shows an electric fence optimal for preventing deer intrusion. The difference from the electric fence shown in FIG. 2 is how to construct the wires 3a and 3b. That is, the wire 3b is installed at a distance of 10 cm from the ground G, the wire 3a is installed at a distance of 10 cm from the wire 3b, and the wire 3a is installed at a distance of 20 cm from the wire 3a. Three wires 3a are installed at intervals of 30 cm. Other installation methods are almost the same as those of the electric fence shown in FIG.

  In addition, the electric fence shown by the above-mentioned FIG. 1 thru | or FIG. 3 is an illustration which shows a suitable installation method, and the content of this invention is not limited to the above-mentioned aspect.

The schematic explanatory drawing of the electric fence which concerns on this invention suitable for preventing invasion of a small animal. BRIEF DESCRIPTION OF THE DRAWINGS Schematic explanatory drawing of the electric fence which concerns on this invention suitable for preventing invasion of a wild boar etc. BRIEF DESCRIPTION OF THE DRAWINGS Schematic explanatory drawing of the electric fence which concerns on this invention suitable for preventing the penetration | invasion of deer etc.

Explanation of symbols

1 .. Power supply device 1a... Plus pole 1b .. minus pole 3a and 3b.

Claims (2)

  A negative pole 1b of the power supply device 1 in an electric fence comprising a wire having a conductive surface, a support for insulating the wire from a grounding surface, and a power supply device for applying an electric shock voltage to the wire. One or a plurality of wire rods 3b connected to the ground plane are provided from the side close to the ground plane, and one wire rod 3a connected to the positive electrode 1a side of the power supply device 1 is provided above the wire rod 3b connected to the negative electrode 1b. Or an electric fence with multiple lines.   The electric fence according to claim 1, wherein a height of the wire rod 3b provided at the lowest stage from the grounding surface is 10 cm or less.

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